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675
Joined
1/1/2008
Location
Hampden, MA
US
Fantasy
2541st
Edited Date/Time
8/16/2015 8:21pm
OEM Crankshaft for a 2010 KX250F. It's been machined & lightened, balanced to within .001", with a new rod and bearing. It was just balanced by my local tuner Steve Balboni. It only fits 2010 cases. I unfortunately learned the hard way having an 09 model. Looking for $200. A new OEM unit is 388, a hot rods shaft is around $200. This is a steal!
A set of input & output transmission shafts that have been Isotropic Superfinished. They've never been used since the treatment. This is the trick acid bath process that all the factory teams do to reduce friction & mechanical noise, improve shift feel, increase HP, and prolong oil life. This process costs $350 from eleven10 mods. These shafts fit 2011+ up.
$200.
Here's a pic of the parts in a case. I never completed the install of these parts as they wouldn't fit my cases.
A set of input & output transmission shafts that have been Isotropic Superfinished. They've never been used since the treatment. This is the trick acid bath process that all the factory teams do to reduce friction & mechanical noise, improve shift feel, increase HP, and prolong oil life. This process costs $350 from eleven10 mods. These shafts fit 2011+ up.
$200.
Here's a pic of the parts in a case. I never completed the install of these parts as they wouldn't fit my cases.
Thanks!
What year bike do you have Jhansen? I want to make sure each gear has the same number of teeth. Because I ran into this problem and it caused a major headache.
It doesn't include the other transmission parts like shift forks, rods, and drum but I do have an ISF treated shift shaft for sale as well.
The Shop
After review ONLY the two circled gears are different between your OEM trans. and the one I have for sale. The 2013 has a 28t 2nd gear output side, while the set I have for sale has 23. Additionally the 2013 has a 21t 4th gear while this set has a 24t 4th gear. To the untrained eye they look exactly the same and when the two shafts are meshed together they look like they would work but I wouldn't chance it running these different gears.
The input shaft and gears are exactly the same number of teeth & part numbers between this set and the 2013, it's only a difference on the output shaft.
The cheapest, easiest solution would be to use your current 4th and 2nd gears from your 2013 model. Those two gears would obviously not be treated in ISF/REM but It's my opinion you'd still notice a good improvement. The two gears slide onto the shaft and function 100%. I know because I've tried lol, I pieced together an entire 2009 motor using parts from other years and learned a lot about what works and what doesn't.
Because of this I'll throw in the ISF/REM shift shaft no charge. $200 + $15 shipping and handling and I'll have it out to you ASAP. At this time I do not have any other parts for your bike. Paypal is pj726e@aol.com.
Here's a more detailed shot of the crankshaft.
A detailed picture of the ISF/REM shafts, they look like jewelry. I will be using everything else in this pic other than the two shafts, so they will not be offered for sale.
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